Dorfer brothers



(No Model.)

LGBRSTENMRFER. J HYDRAULIC MOTOR.

No. 538,906. Patented Ma 7, 18-95.,

W/TNE SE8. V II! I I INVENTOI? my improved hydraulic motor.

NITED STATES ATENT FFICE.

ALBERT GERSTENDORFER, OF NEYV YORK, N. Y., ASSIGNOR TO GERSTEN- I DORFER BROTHERS, OF SAME PLACE.

HYDRAULIC Moron.

SPECIFICATION forming part of Letters Patent No. 538,906, dated May '7, 1895. Application filed November 8,1894. Serial No. 528,185. (No model.)

To all whom it may concern: 7

Be it known that I, ALBERT GERsTENDoR- FER, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Hydraulic Motors, of which the following is a specification.

This invention relates to an improved hydraulic motor for converting the forcewhich is exerted by an. outflowing column of water on a plug, piston or valve that is arranged above the outlet-opening, into reciprocating motion; and the invention consists of a tank for containing water, provided with one or more outlet-openings and discharge-pipes below said openings, a supply-pipe for said tank, a spring supported above the tank, and a piston or pistons suspended from said spring and arranged above the outlet-opening or openings, so that by the alternate suction on the piston or pistons a downward pull is exerted on the spring so that the pistons will close the outlet-openings and permit the return motion of the spring so that the same is reciprocated, the reciprocating motion being capable of conversion into continuous rotary motion, as will be fully described hereinafter and finally set forth in the claims.

In the accompanying drawings, Figure 1 represents a vertical longitudinal section of Fig. 2 is a vertical transverse section of the same on line 2 2, Fig. 1, showing the same arranged with two pistons and two outlet-pipes; and Fig. 3 is a vertical longitudinal section of a modified construction of the motor.

Similar letters of reference indicate corresponding parts. 7

In the drawings, A represents a tank of suitable size and construction, which is pro vided with one or more outlet-openings a in its bottom and with outlet-pipes a a. that discharge the water from the tank to a suitable discharge-pipe. The outlet-opening a may be provided with an S-shaped. trap, or with a contracted portion, or with any other device used for obtaining a partial vacuum in the outflow pipe. Above the top of the tank is arranged a spring-bar B, which is either supported at both ends by suitable means attached to the side-walls of the tank, as shown in Fig. 1, or at one end, in which case the free end is capable of avertical play. To this spring-bar B is attached, by means of a connectingrod 0, one or more plugs, pistons or valves 0, which are located at a definite distan ce above. the outlet-openings in the bottom of the tank. When the spring-bar B is supported at both ends, and a plurality of pistons 0 used, the latter are connected by rods 0' with a transverse rod 0 attached to the center of the spring-bar B, said spring-bar being connected by a pitman with a crankshaft supported in suitable bearings above the tank, and which crank-shaft is provided witha fiy-wheel and suitable transmittingmechanism, so that the reciprocating motion of the spring-bar is converted into continuous rotary motion. WVhen the spring-bar B is supported at one end, the motion-transmitting mechanism is applied to its outer free end, as shown in Fig. 3. v

A supply-pipe E supplies water to the tank, and permits thereby the continuous working of the motor. As soon as the water is permitted to flow through the outlet-opening or openings in the bottom of said tank, a considerable suction is created on the piston, so that the same is drawn in downward direction until it closes the outlet-opening. By the downward motion of the piston in following the suction exerted on the same, the springbar is bent in downward direction until the piston closes the outlet-opening, when the tension of the spring-bar produces its return and the lifting of the piston. It is preferable to apply some weights to the spring-bar, so that the inertia of the weights, in connection with the inertia of the parts, assists in producing larger and comparatively slow vibrations of the spring-bar. As soon as the piston is moved in upward direction by following the motionof the spring-bar, it is again affected by the suction force exerted on the piston, and is then compelled to descend again until it closes the outlet-opening in the bottom of the tank and the spring-bar is returned again. This alternating action of the suction-force on the piston and of the return action of the spring-bar on the same produces a reciprocating motion, while the water flows through the outlet-pipe. This reciprocating motion maybe converted into continuous rotary motion by the transmitting-mechanism described, or by any other suitable mechanism, and imparted to a crank-shaft, from which the power is transmitted to suitable machinery.

It is obvious that in place of one piston, two pistons or a plurality of pistons may be used, or that the shape of the plug may be changed to a conical valve fitting into the outlet-opening, or it may be made in the shape of a piston which moves in the cylinder of the outlet-pipe, or any other construction may be used. The tank may be made open or with a closed top, when the water may be supplied to it under pressure, in which case the motiontransmitting piston rod passes through a stuffing-box in the top of the tank. The spring used may be either a bar-spring or a spiral spring, or any other suitable spring, By making the piston of rubber, a better and less hammering action is obtained than when it is made of metal, as such pistons have a greater degree of elasticity and at the same time tend to spring back when they are struck on the bottom of the tank, so as to co-operate thereby with the spring-bar in its upward reaction of the piston.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. The combination, with a tank provided with a supply-pipe and with an outlet-opening and a discharge-pipe in the bottom of the same, of a piston located at such a distance from the outlet-opening as to be acted upon by the suction caused by the outtiowing water, a spring supported above the outlet-opening and connected to the piston so as to produce by the alternating suction-force exerted on the piston and the action of the spring a reciprocatin g motion, and a power-transmittiu g device connected with the spring, substantially as set forth.

2. The combination, with a tank and a supply-pipe for the same, said tank being provided with an outlet-opening and a dischargepipe,of means for producing a partial vacuum in the outlet-pipe, a piston arranged above the outlet-opening in the bottom of the tank at such a distance therefrom as to be acted upon by the suction caused by the outfiowing water, a spring supported above the tank, means for connecting the piston with said spring, and a power transmitting device connected with the spring, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing Witnesses.

ALBERT GERSTENDORFER.

Witnesses:

PAUL GOEPEL, S. E. SMITH. 

